Design an e-invitation

We will be celebrating our 15th year anniversary in January and we would need an e-invitation. We already have an existing design from our 10th anniversary and we are thinking of just updating this with the following: • Change 10th to 15th • Update the address • Update the time • Update the RSVP Below are the output that we need (the previous invitation is only on .pdf and .jpg): • Image (in jpeg, gif, etc) • HTML We are planning to send this via MS Outlook, and the content has to viewed in plain text as well. I also have a tight timeline, please let me know what is your turnaround time. Thanks, Dianne